Uhhhmmm, am I not in the Newbie section?*$%!
Will have a look if I can decipher that somehow...
The system starts an Xsession anyway since it's gonna be used for a kiosk on a RPi.
To be sure/clear: are you talking about the status info during start up, the typical linux - don't know how it's called officially - white text on black background that scrolls?
Can you start a program before this scrolling text?
I found out that the GRUB loader would be able to interact with this process but it's not available on a RPi.
Another option might be Berryboot but have to look into that if it comes near to what I want.
Thanks anyway for your input! ;-)